2020-2022 Audi e-tron A/C Sensor Service Action 87H9

Audi has launched Service Action 87H9 to address a potential issue with the air conditioning system in certain 2020-2022 e-tron vehicles. This service action focuses on the pressure and temperature sensors, specifically the G395 and G826 sensors, which, if faulty, can cause the entire A/C system to stop functioning. Owners of affected vehicles should schedule an appointment with an authorized Audi dealer for inspection and repair.

This proactive measure aims to ensure customer satisfaction and maintain the expected performance of your Audi e-tron. The repair will be performed free of charge, but it is important to have the work completed before the campaign expiration date of September 01, 2028.

Symptoms of A/C Sensor Failure

Owners of affected 2020-2022 Audi e-tron vehicles may experience a complete failure of the air conditioning system. If the pressure and temperature sensors in the A/C system fail, the primary symptom will be that the "air conditioning system will no longer function." This means the vehicle's climate control will be unable to cool the cabin effectively.

What Owners Should Know

Owners should be aware of the following critical information regarding Service Action 87H9:

• Campaign Expiration: "This service action will be available for you free of charge only until September 01, 2028." If you wish to have this service performed after this date, "your dealerships normal costs associated with this work will apply."
• Inventory Vehicles: Dealers are required to ensure that every affected inventory vehicle has this campaign completed before delivery to consumers.
• Professional Service Required: The repair information in this document is intended for use only by skilled technicians. These procedures are not intended to be attempted by "do-it-yourselfers." Contact an authorized Audi dealer to determine if this information applies to your vehicle.
• Improper Repair: "Damages resulting from improper repair or failure to follow these work instructions are the dealer's responsibility and are not eligible for reimbursement under this action."
• Pre-existing Conditions: "Diagnosis and repair of pre-existing conditions in the vehicle are not covered under this action."
• Loaner/Wash Services: Dealers are instructed, "Do not claim wash/loaner under this action."

Diagnosis and Inspection Process

To diagnose the Audi e-tron A/C sensor failure, technicians will first verify the vehicle's eligibility for Service Action 87H9 using the Campaigns/Actions screen in the Audi Elsa system. Elsa is the only valid source for campaign inquiry and verification. The campaign status must show "open" for the vehicle to qualify for the repair.

If other open actions are present in Elsa, the customer will be informed so that all necessary work can be completed during the same workshop visit. Before proceeding, technicians must confirm the campaign is open and note the Applicable Criteria ID to determine the correct work and associated parts.

Critical Repair Step: If multiple software update Campaign/Actions are open, they must be performed in order of their start date, with the oldest being performed first. All Safety Recalls must be completed prior to completing this campaign.

The inspection involves visually checking the G395 and G826 pressure/temperature sensors. The first step is to remove the front luggage compartment liner, following the instructions in the ELSA repair manual under "Body > Body Interior > Interior Trim > Luggage Compartment Trim Panels > Front Luggage Compartment Liner, Removing and Installing." The sensors are located in the under-hood compartment. Technicians will label the sensors and connectors as needed, ensure the ignition is turned off, and then disconnect the sensors.

Technicians will look for a green dot on the connector housing of both the G395 and G826 sensors. If both sensors have this green dot, they do not require replacement, and the technician will proceed with reassembly. If a green dot is not present on one or both sensors, the production date of the affected sensor is checked. Sensors produced between calendar week 23 of 2020 and calendar week 30 of 2021 must be replaced. If the production information is not easily visible, a mirror can be used for inspection. Sensors produced outside this range, such as calendar week 31 of 2022, do not require replacement. The date format for production is week/year.

Detailed Repair Procedure

If a sensor requires replacement, the repair proceeds to Section C of the service action. This critical step involves careful handling of the high-voltage system and refrigerant. Technicians must observe strict safety precautions due to the "Danger of frostbite due to refrigerant coming out under pressure." This includes wearing safety gloves and protective eyewear.

The repair process requires evacuating or draining the refrigerant and immediately opening the refrigerant circuit. If more than 10 minutes pass after extraction or draining without opening the circuit, the refrigerant must be extracted or drained again due to pressure buildup from evaporation. The power-activated valves in the refrigerant circuit must be opened via ODIS (Offboard Diagnostic Information System) per ELSA prior to refrigerant recovery.

Specific instructions for replacing the G395 and G826 sensors are found in the ELSA repair manual under "Heating, Ventilation & Air Conditioning > Heating Ventilation and Air conditioning > 87 Air Conditioning > Refrigerant Circuit > A/C Pressure/Temperature Sensor G395, Removing and Installing" and "A/C Pressure/Temperature Sensor 2 G826, Removing and Installing," respectively. After sensor replacement, any additional basic settings recommended by the test plan must be completed.

Vehicle reassembly involves reversing the removal process. The A/C system must be recharged with the amount of refrigerant that was recovered. Crucially, the front luggage compartment liner and the foam insert for tool storage (Part Numbers 4KE-012-113-A and 4KE-863-362-B) must be replaced with new parts after removal.

Required Tools and Parts

Performing Service Action 87H9 requires specialized tools and specific parts to ensure a correct and safe repair:

• Sensors:
  • SENSOR (Part Number: 4M0-959-603-E or 4M0959603E) - Up to 2 units
• Bins/Inserts:
  • BIN (Part Number: 4KE-012-113-A) - 1 unit, VIN to Order
  • BIN (Part Number: 4KE-863-362-B) - 1 unit, VIN to Order
  • Tool storage insert (Part Number: 4KE-012-113-A)
  • Storage Bin (Part Number: 4KE-863-362-B)
• Refrigerant and Oil:
  • OIL REFRIG (Part Number: G-052-535-1M-DSP) - Up to 1.2 ml, Free Order
  • R1234yf refrigerant (Locally sourced) - Up to 74g (2.61 oz), Free Order
  • OIL FOR REFRIGERANT COMPRESSOR (Part Number: G 052535M2) - Up to 0.01 unit
• Fasteners:
  • RIVET (Part Number: N 90558401) - Up to 4.00 units
• Specialized Equipment:
  • R1234yf Air Conditioning Service Unit (ROB1234YFX- or VAS581005-)
  • Engine Bung Set (VAS6122- or equivalent)
  • Socket - 24mm (T40284- or equivalent)
  • Diagnostic Tester (VAS6150X/6160X- or equivalent)
  • Battery Tester/Charger capable of minimum 90 Amp continuous supply
• Safety Gear:
  • Safety Gloves
  • Safety Goggles

Parts ordered for this campaign should always follow the information in the circular, as the ordering system will supersede parts if applicable. For US dealers, VIN-to-order parts use AVA, while Canadian dealers contact Parts Specialists via phone (800-767-6552), email ([email protected]), or chat/text with the VIN.

Warranty Claim Information

For dealers, the claim entry instructions for Service Action 87H9 specify:

• Service Number: 87H9
• Damage Code: 0099
• Parts Vendor Code: 002
• Claim Type: Sold vehicle: 7 10; Unsold vehicle: 7 90
• Causal Indicator: Mark labor as causal if SENSOR is OK; Mark SENSOR* as causal if a sensor(s) is NOT OK
• Criteria I.D.: GE (Pressure/temperature sensor inspection)

Labor Operations and Time Units:

Labor Op	Time Units	Description
8711 01 99	10	Check sensor production dates
7007 19 00	SEE ELSA	Storage compartment remove+reinstall
8709 20 51	SEE ELSA	2 Pressure switch remove+reinstall (if both sensors replaced)
8757 19 50	SEE ELSA	High pressure switch remove+reinstall (Only if G395 sensor replaced)
8764 19 50	SEE ELSA	Low pressure switch remove+reinstall (Only if G826 sensor replaced)
8703 17 00	SEE ELSA	Refrigerant drain+fill
2706 89 50	SEE ELSA	Connect battery charge
0150 00 00	Time stated on diagnostic protocol	GFF/Guided functions

Owner Action

If you own a 2020-2022 Audi e-tron, and you experience an Audi e-tron A/C sensor failure or simply want to ensure your vehicle is not affected, you should contact your authorized Audi dealer as soon as possible to schedule an appointment. The inspection and any necessary repairs will be performed free of charge. Audi estimates the work will take approximately four hours, though additional time may be needed for scheduling and preparation.

To check your vehicle's eligibility for this or any other service campaign, you can visit the Recall/Service Campaign Lookup tool on www.audiusa.com and enter your Vehicle Identification Number (VIN).

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Source: NHTSA ID: 10250344